Thanks for the input fellas. I've got a rifle right now which is more than enough. And I always understand that the hits come from the Indian not the bow. I practice a lot (a few hundred rounds a week), and this is a fun hobby for me. So, building the rifle is more for fun than anything. And when I make something (whether it be my old little racecar, or my gun bench, my beer, etc) I tend go overboard. I want to build something I can be proud of, that has some great utility to it, and that I'll be confident with.
Between the three barrels, please tell me which one you'd all go for